What is virtualizatin?“Virtualization is a technology that combines or divides computing resources to present one or many operating environments using methodologies like hardware and software partitioning or aggregation, partial or complete machine simulation, emulation, time-sharing, and many others.” This means, that virtualization uses technology to abstract from the real hardware and provides isolated environments, so …
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Chef Journey
I’m starting a blog series on chef where I would be taking you to a journey of managing my current infrastructure using Chef. To start with these are the high level tasks lists that I’ve in mind: User Management : User’s creation or deletion on an environment(Dev/QA/Staging/Production) should be managed by chef, along with kind …
VPC per envrionvment versus Single VPC for all environments
This blog talks about the two possible ways of hosting your infrastructure in Cloud, though it will be more close to hosting on AWS as it is a real life example but this problem can be applied to any cloud infrastructure set-up. I’m just sharing my thoughts and pros & cons of both approaches but …
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Chef Solo an Introduction
Introduction Chef Solo is simple way to begin working with Chef. It is an open source version of the chef-client that allows using cookbooks with nodes without requiring access to a server. Chef Solo runs locally and requires that a cookbook (and any of its dependencies) be on the same physical disk as the node. …
Revert a patch in most awesome way
If you are a Release Engineer, System Admin or Support Engineer you have definitely come across a requirement where you have to apply patches to the target systems be it production or non-production. I’m assuming that you are using some automated system to manage the patches i.e applying them and reverting them. In this blog …
Win Free Ecopy of new book on ReviewBoard
Readers would be pleased to know that I have teamed up with Packt Publishing to organize a Giveaway of the Getting Started with Review Board And two lucky winners stand a chance to win ecopy of the book. Keep reading to find out how you can be one of the Lucky Winners. Overview of book: …
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How to secure your Linux Server
Yesterday was a good and bad day for me, bad day because one of my linux server has been hacked. Good day because it was one of the most important task in my pipeline which I wanted to take up, that is securing my systems. As people say being agile or lazy :), do when …
A wrapper over linode python API bindings
Recently I’ve been working on automating the nodes creation on our Linode infrastructure, in the process I came across the Linode API and it’s bindings. Though they were powerful but lacks at some places i.e: In case of Linode CLI, while creating a linode you have to enter the root password so you can’t achieve …
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How to Manage Amazon Web Services Instances part 1
If you want to minimize the amount of money you spend on Amazon Web Services (AWS) infrastructure, then this blog post is for you. In this post I will be discussing the rationale behind starting & stopping AWS instances in an automated fashion and more importantly, doing it in a correct way. Obviously you could …
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Attach a new volume to EC2 Instance
This blog will talk about how to mount a new volume to an existing EC2 instance, though it is very straightforward & simple, but it’s good to have a checklist ready with you so that you can do things in one go instead of searching here and there. The most important thing to take note …
Devops Done Right 